Citation: | HU Xiaofang, CHEN Songlin. 基于螺旋桨负荷特性的双桨船操纵性预报[J]. Chinese Journal of Ship Research, 2014, 9(2): 17-21. DOI: 10.3969/j.issn.1673-3185.2014.02.004 |
通过对双桨船内、外两桨负荷变化情况及其对舰船回转性和回转速降计算结果影响的分析,提出了采用等功率法分别计算双桨船内、外两桨的转速、进速系数等,进而确定两桨的推力和转艏力矩,从而进行双桨船回转性和回转时速降预报。以某双桨船为例,分别用等转速法、等推力法和等功率法进行回转轨迹、回转时螺旋桨推力、速降和转艏力矩的计算。计算结果表明:采用等功率法与采用等转速法所得到的回转轨迹基本相同,较之等推力法所得到的回转直径的计算结果更接近实船实际情况;采用等功率法所得到的速降介于等转速法和等推力法之间,最为接近实船的实际情况。
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